diff --git a/configure b/configure
index 0f9ba0f..5910f33 100755
--- a/configure
+++ b/configure
@@ -10275,7 +10275,7 @@
 
 # checks for library functions
 for ac_func in alarm accept4 setitimer getitimer bind_textdomain_codeset chown \
- clock confstr ctermid execv faccessat fchmod fchmodat fchown fchownat \
+ clock confstr ctermid dup3 execv faccessat fchmod fchmodat fchown fchownat \
  fexecve fdopendir fork fpathconf fstatat ftime ftruncate futimesat \
  futimens futimes gai_strerror \
  getgrouplist getgroups getlogin getloadavg getpeername getpgid getpid \